Ibaraki, Japan

Kouji Maruyama

This inventor holds 9 USPTO granted patents and 1 EPO patent. Top assignees: Nitto-Denko Corporation, Sekisui Chemical Co., Ltd.. Active years: 1995-2018.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kouji Maruyama. Retrieved from https://idiyas.com/inventor/kouji-maruyama-uu1f5nwb

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank

% Patents Active = 55.6


Average Co-Inventor Count = 4.7

ph-index = 4

Forward Citations = 41(Granted Patents)


Location History:

  • Shiga, JP (1999)
  • Osaka, JP (1996 - 2014)
  • Ibaraki, JP (1995 - 2018)

Company Filing History:


Years Active: 1995-2018

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9 patents (USPTO):Explore Patents

Title: Innovations of Kouji Maruyama

Introduction

Kouji Maruyama is a notable inventor based in Ibaraki, Japan. He has made significant contributions to the field of adhesive technology and water treatment through his innovative patents. With a total of nine patents to his name, Maruyama has demonstrated a commitment to advancing technology in practical applications.

Latest Patents

Among his latest inventions is the anti-fouling adhesive sheet, which provides a solution for preventing peeling from overlapping portions when adjacent sheets are attached. This invention includes a base material layer, a pressure-sensitive adhesive layer, and an anti-fouling layer, ensuring durability and effectiveness. Another significant patent is the composite semipermeable membrane, designed to resist microbial contamination. This membrane features a skin layer made from a polyamide-based resin and includes an antibacterial layer containing a silver-based agent, enhancing its resistance properties.

Career Highlights

Kouji Maruyama has worked with prominent companies such as Nitto Denko Corporation and Sekisui Chemical Co., Ltd. His experience in these organizations has allowed him to develop and refine his innovative ideas, contributing to advancements in adhesive and membrane technologies.

Collaborations

Maruyama has collaborated with notable colleagues, including Minoru Suezaki and Naoki Kurata. These partnerships have fostered a creative environment that has led to the development of groundbreaking inventions.

Conclusion

Kouji Maruyama's contributions to adhesive technology and water treatment exemplify the impact of innovation in addressing real-world challenges. His patents reflect a dedication to improving product performance and environmental sustainability.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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